TA:K Freezing when Alt+TAB Fix

Yo guys, passing here to show a fix to TA:K freezing after alt+tab, not working after that. Not sure if it'll work with everyone, but it worked for me. So, if you're having those problems, follow the instructions:

Software MMX gives way more performance, though when I alt+tab at this mode, game freezes and I can't come back to the game. Direct3D gives more visual beauty but you have to sacrifice much FPS for that.